A potential roadblock are Republican leaders in the House, with House Speaker Paul Ryan and Rep. Kevin Brady, R-Woodlands, the chairman of the Ways and Means Committee, both reportedly skeptical of so-called tax extenders after working to clean up the tax code in last year's Republican tax bill.

"No agreement has been reached yet, and no guarantee [tax extenders] will be included in a final product. But we've continued those conversations since tax reform concluded," Brady told the Associated Press Tuesday.

The continuing budget resolution passed by the House Tuesday contained no mention of tax extenders. But Sen. Orrin Hatch, R-Utah, chair of the Senate Finance, is pressing Congress to move on the issue, setting up the possibility for a deal between the two chambers.

Brady and Ryan are facing pressure from within their own party. Last week Rep. Michael Conaway, R-Llano, along with more than 40 other Republicans and Democrats, wrote to House leaders calling for a tax extension for carbon capture. And nuclear and other technologies have their coalitions too.

Rep. Will Hurd, R-San Antonio, and Rep. Joe Barton, R-Arlington, are among a coalition of Texas Republicans "pushing Brady and Ryan on it, so well see what happens," said Harrell.